ISO 4504:2025

ISO 4504:2025

Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry

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Details

This document specifies two methods for the determination of co-monomer contents of polyethylene products by solution state 13C-NMR spectrometry (nuclear magnetic resonance spectrometry): — Method A: inverse gated decoupling method, — Method B: insensitive nuclei enhanced by polarization transfer method. This document is applicable to copolymers of ethylene having a content of other 1-olefinic monomers of less than a mass fraction of 50 %. This document is not applicable to ethylene homopolymers or copolymers in which ethylene is polymerized with two or more type 1-olefin comonomers.

Zusätzliche Information

Autor International Organization for Standardization (ISO)
Komitee ISO/TC 61/SC 9
Veröffentlicht von ISO
Document type Normen
Ausgabe 2
ICS 83.080.20 : Thermoplastische Kunststoffe
Seitenzahl 28
Ersetzt ISO 4504:2023
Gewicht(kg.) 0.1476
Schlagwort ISO 4504:2025